View list in rank order
Rank		Country	Value	Date of Info
89		Afghanistan	24%	2008
111		Akrotiri	0	2023
105		Albania	19.6%	2015
76		Algeria	26.8%	1995
111		American Samoa	0%	2023
111		Andorra	0%	2023
8		Angola	44.7%	2000
111		Anguilla	0%	2023
111		Antigua and Barbuda	0%	2023
53		Argentina	31%	2017
83		Armenia	25.7%	2014
111		Aruba	0%	2023
85		Australia	25.4%	1994
92		Austria	23.5%	2012
72		Azerbaijan	27.4%	2008
99		Bahamas The	22%	2007
111		Bahrain	0%	2023
75		Bangladesh	27%	2010
111		Barbados	0%	2023
100		Belarus	21.9%	2008
68		Belgium	28.4%	2006
111		Belize	0%	2023
65		Benin	29%	2003
111		Bermuda	0%	2023
56		Bhutan	30.6%	2012
31		Bolivia	36.1%	2014
82		Bosnia and Herzegovina	25.8%	2011
111		Botswana	0%	2023
9		Brazil	43.4%	2016
111		British Indian Ocean Territory	0	2023
111		British Virgin Islands	0%	2023
111		Brunei	0%	2023
51		Bulgaria	31.2%	2017
45		Burkina Faso	32.2%	2009
43		Burma	32.4%	1998
70		Burundi	28%	2006
13		Cabo Verde	40.6%	2000
70		Cambodia	28%	2013
33		Cameroon	35.4%	2001
88		Canada	24.8%	2000
111		Cayman Islands	0%	2023
40		Central African Republic	33%	2003
55		Chad	30.8%	2003
12		Chile	41.5%	2013
49		China	31.4%	2012
111		Christmas Island	0	2023
111		Cocos (Keeling) Islands	0	2023
18		Colombia	39.6%	2015
1		Comoros	55.2%	2004
35		Congo Democratic Republic of the	34.7%	2006
28		Congo Republic of the	37.1%	2005
111		Cook Islands	0%	2023
29		Costa Rica	36.9%	2014
46		Cote d'Ivoire	31.8%	2008
95		Croatia	23%	2015
111		Cuba	0%	2023
111		Curacao	0	2023
66		Cyprus	28.8%	2014
101		Czechia	21.7%	2015
93		Denmark	23.4%	2016
111		Dhekelia	0	2023
54		Djibouti	30.9%	2002
111		Dominica	0%	2023
27		Dominican Republic	37.4%	2013
33		Ecuador	35.4%	2012
78		Egypt	26.6%	2008
44		El Salvador	32.3%	2014
111		Equatorial Guinea	0%	2023
111		Eritrea	0%	2023
84		Estonia	25.6%	2015
16		Eswatini	40.1%	2010
84		Ethiopia	25.6%	2005
91		European Union	23.8%	2016
111		Falkland Islands (Islas Malvinas)	0%	2023
111		Faroe Islands	0%	2023
34		Fiji	34.9%	2009
7		Finland	45.2%	2013
85		France	25.4%	2013
111		French Polynesia	0%	2023
111		French Southern and Antarctic Lands	0	2023
42		Gabon	32.7%	2005
29		Gambia The	36.9%	2003
111		Gaza Strip	0	2023
50		Georgia	31.3%	2008
89		Germany	24%	2000
41		Ghana	32.8%	2006
111		Gibraltar	0%	2023
77		Greece	26.7%	2015
111		Greenland	0%	2023
111		Grenada	0%	2023
111		Guam	0%	2023
21		Guatemala	38.4%	2014
111		Guernsey	0%	2023
57		Guinea	30.3%	2007
70		Guinea-Bissau	28%	2002
36		Guyana	33.8%	1999
4		Haiti	47.7%	2001
111		Holy See (Vatican City)	0	2023
21		Honduras	38.4%	2014
23		Hong Kong	38.1%	2016
97		Hungary	22.4%	2015
111		Iceland	0%	2023
61		India	29.8%	2011
69		Indonesia	28.2%	2010
62		Iran	29.6%	2005
83		Iraq	25.7%	2007
73		Ireland	27.2%	2000
111		Isle of Man	0%	2023
50		Israel	31.3%	2010
76		Italy	26.8%	2000
64		Jamaica	29.3%	2015
88		Japan	24.8%	2008
111		Jersey	0%	2023
67		Jordan	28.7%	2010
94		Kazakhstan	23.3%	2016
24		Kenya	37.8%	2005
111		Kiribati	0%	2023
111		Korea North	0%	2023
3		Korea South	48.5%	2015
99		Kosovo	22%	2015
111		Kuwait	0%	2023
96		Kyrgyzstan	22.9%	2014
57		Laos	30.3%	2008
79		Latvia	26.3%	2015
111		Lebanon	0%	2023
19		Lesotho	39.4%	2003
59		Liberia	30.1%	2007
111		Libya	0%	2023
111		Liechtenstein	0%	2023
66		Lithuania	28.8%	2015
91		Luxembourg	23.8%	2000
111		Macau	0%	2023
35		Madagascar	34.7%	2010
26		Malawi	37.5%	2010
35		Malaysia	34.7%	2009
38		Maldives	33.3%	0910
82		Mali	25.8%	2010
111		Malta	0%	2023
111		Marshall Islands	0%	2023
63		Mauritania	29.5%	2000
111		Mauritius	0%	2023
17		Mexico	40%	2014
111		Micronesia Federated States of	0%	2023
98		Moldova	22.1%	2014
111		Monaco	0%	2023
110		Mongolia	5.7%	2017
83		Montenegro	25.7%	2014
111		Montserrat	0%	2023
39		Morocco	33.2%	2007
30		Mozambique	36.7%	2008
11		Namibia	42%	2010
111		Nauru	0%	2023
63		Nepal	29.5%	2011
87		Netherlands	24.9%	2014
111		New Caledonia	0%	2023
111		New Zealand	0%	2023
6		Nicaragua	47.1%	2014
76		Niger	26.8%	2014
22		Nigeria	38.2%	2010
111		Niue	0%	2023
111		Norfolk Island	0	2023
86		North Macedonia	25%	2015
111		Northern Mariana Islands	0%	2023
103		Norway	21.2%	2014
111		Oman	0%	2023
80		Pakistan	26.1%	2013
111		Palau	0%	2023
20		Panama	38.9%	2014
14		Papua New Guinea	40.5%	1996
25		Paraguay	37.6%	2013
31		Peru	36.1%	2010
63		Philippines	29.5%	2015
111		Pitcairn Islands	0	2023
90		Poland	23.9%	2015
81		Portugal	25.9%	2015
111		Puerto Rico	0%	2023
32		Qatar	35.9%	2007
109		Romania	7.6%	2014
45		Russia	32.2%	2012
10		Rwanda	43.2%	2011
111		Saint Barthelemy	0	2023
111		Saint Helena Ascension and Tristan da Cunha	0%	2023
111		Saint Kitts and Nevis	0%	2023
111		Saint Lucia	0%	2023
111		Saint Martin	0	2023
111		Saint Pierre and Miquelon	0%	2023
111		Saint Vincent and the Grenadines	0%	2023
111		Samoa	0%	2023
111		San Marino	0%	2023
111		Sao Tome and Principe	0%	2023
111		Saudi Arabia	0%	2023
52		Senegal	31.1%	2011
91		Serbia	23.8%	2011
108		Seychelles	15.4%	2007
37		Sierra Leone	33.6%	2003
71		Singapore	27.5%	2017
111		Sint Maarten	0	2023
106		Slovakia	19.3%	2015
104		Slovenia	20.1%	2016
111		Solomon Islands	0%	2023
111		Somalia	0%	2023
2		South Africa	51.3%	2011
111		South Sudan	0	2023
89		Spain	24%	2011
45		Sri Lanka	32.2%	2012
77		Sudan	26.7%	2009
111		Suriname	0%	2023
111		Svalbard	0	2023
89		Sweden	24%	2012
107		Switzerland	19%	2007
111		Syria	0%	2023
15		Taiwan	40.3%	2010
111		Tajikistan	0%	2009
62		Tanzania	29.6%	2007
48		Thailand	31.5%	2009
75		Timor-Leste	27%	2007
74		Togo	27.1%	2006
111		Tokelau	0	2023
111		Tonga	0%	2023
111		Trinidad and Tobago	0%	2023
75		Tunisia	27%	2010
57		Turkey (Turkiye)	30.3%	2008
47		Turkmenistan	31.7%	1998
111		Turks and Caicos Islands	0%	2023
111		Tuvalu	0%	2023
31		Uganda	36.1%	2009
102		Ukraine	21.6%	2015
111		United Arab Emirates	0%	2023
52		United Kingdom	31.1%	2012
60		United States	30%	2007
55		Uruguay	30.8%	2014
62		Uzbekistan	29.6%	2003
111		Vanuatu	0%	2023
42		Venezuela	32.7%	2006
76		Vietnam	26.8%	2014
111		Virgin Islands	0%	2023
111		Wallis and Futuna	0%	2023
69		West Bank	28.2%	2009
58		World	30.2%	2008
57		Yemen	30.3%	2008
5		Zambia	47.4%	2010